CN214045181U

CN214045181U - Control panel suitable for join in marriage net terminal equipment

Info

Publication number: CN214045181U
Application number: CN202023031192.2U
Authority: CN
Inventors: 王超; 邱锡为; 张志成; 侯杰
Original assignee: Shanghai Zenitek Intelligent Technology Co ltd
Current assignee: Shanghai Zenitek Intelligent Technology Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-08-24
Anticipated expiration: 2030-12-16

Abstract

The utility model provides a control panel suitable for join in marriage net terminal equipment, characterized by, comprising a base plate, stack nuclear core plate on the bottom plate is provided with peripheral function circuit according to nuclear core plate's interface on the bottom plate, and peripheral function circuit includes: the system comprises an EMS anti-interference circuit, a photoelectric isolation circuit, a self-switching receiving and transmitting circuit, an RS232 serial port transceiver, a lightning surge protection circuit and a filter circuit; the core board is a low-power-consumption embedded computer system with a chip, adopts a 2.54mm double-pin expansion interface, has the size of 58X64mm, is provided with a Linux system, and is used for realizing cross communication application of various protocols. The scheme has the advantages of remarkably reducing data management cost, simplifying data maintenance, reducing the system shutdown time caused by configuration errors and the like.

Description

Control panel suitable for join in marriage net terminal equipment

Technical Field

The utility model relates to a communication board especially relates to a control panel suitable for join in marriage net terminal equipment.

Background

With the rapid development of automation technology and modern communication technology, the level of automation technology of a substation as an important component of a power grid directly affects the level of modernization of the power grid. Various automatic devices in the station realize automatic monitoring, management, coordination and control of the power grid through information interaction and data sharing among the devices and between the devices and a background system, so that the safe and stable operation of the power grid is improved. Therefore, upgrading and reconstruction of old substations are urgent.

The difficulty of upgrading and transforming the in-station equipment is that interfaces of all devices are disordered and communication protocols used are not uniform. Under the condition that existing equipment is not replaced, communication interfaces and protocols of the total station are unified only through the external communication module, but the external interfaces of the device which are not too many originally can be occupied, and the original functions of the device are affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the problem that exists among the prior art is overcome, a control panel suitable for join in marriage net terminal equipment is provided.

In order to solve the above problems, the technical solution of the present invention is as follows:

the utility model provides a control panel suitable for join in marriage net terminal equipment, includes the bottom plate, superpose nuclear core plate on the bottom plate, be provided with peripheral function circuit according to nuclear core plate's interface on the bottom plate, peripheral function circuit includes: the system comprises an EMS anti-interference circuit, a photoelectric isolation circuit, a self-switching receiving and transmitting circuit, an RS232 serial port transceiver, a lightning surge protection circuit and a filter circuit;

the core board is a low-power-consumption embedded computer system with a chip, adopts a 2.54mm double-pin expansion interface, has the size of 58X64mm, is provided with a Linux system, and is used for realizing cross communication application of various protocols.

The EMS anti-interference circuit is connected with the power supply input interface; the photoelectric isolation circuit and the receiving and transmitting self-switching circuit are connected with an RS484 serial port; the RS232 serial port transceiver is an RS484 serial port; the lightning protection surge circuit and the filter circuit are connected with 10/100M network ports.

The control panel is externally provided with a corresponding interface, and the control panel is arranged at the position of a standby board of the distribution network terminal equipment.

Has the advantages that: the utility model discloses effectively solve each equipment interoperation uniformity problem among the electric power system, reach information sharing, still have showing and reduce data management expense, simplify data maintenance, reduce because the configuration mistake and the system that arouses advantages such as time of stopping use, more can make the intelligent substation to practicality, modularization, standardized development more standard on information acquisition, transmission and processing technology. The device does not occupy an external communication interface of the device, and data interaction is carried out through an original data bus in the device, so that the anti-interference performance is greatly improved; the structure and the layout of the original device are not changed, and the original wiring is not basically adjusted.

Drawings

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments;

fig. 1 is the utility model discloses a control panel principle sketch map suitable for join in marriage net terminal equipment.

Fig. 2 is a schematic diagram of an external interface of the control panel according to the present invention.

Fig. 3 is a schematic circuit diagram of the core board according to the present invention.

Fig. 4 is a schematic diagram of a serial port circuit on the bottom plate of the present invention.

Fig. 5 is a schematic diagram of a serial port transceiving driver circuit on a bottom plate according to the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.

Referring to fig. 1, the control board of this embodiment is inserted into the spare AI board to implement communication, so that the overall layout of the original distribution network equipment, the design of the bottom board and other boards are not changed, and the layout is the same as the scheme of the original equipment.

The control panel is realized by superposing a core board on a bottom board, and the core board comprises a Linux system and supports a cross communication application platform of various protocols; the bottom board is realized by adding a peripheral function circuit according to the interface of the core board. The control panel can realize the function of a communication manager and collect the sampling data of at most 16 sets of protection devices at the lower level; the data forwarding function can be realized, and the acquired data is forwarded to the main CPU of the equipment through a 104 protocol.

The external interface of the control panel is shown in fig. 2, and each interface and function are as follows:

power indicator lamp device power-on indicator lamp

Running light device running indicator light

NET1 network port 1

NET2 network port 2

TX1 serial 1232 transmitting end

RX1 Serial 1232 receiver

GND serial port 1232 ground

TX2 serial 2232 transmitting end

RX2 Serial 2232 receiver

GND serial port 2232 ground

1A serial port 3485 +

1B serial port 3485-

2A serial port 4485 +

2B serial port 4 s485-

V + 24V power supply anode

Cathode of V-24V power supply

Referring to fig. 3, a schematic diagram of a core board circuit is a set of embedded computer systems with low power consumption based on a chip, which adopts a 2.54mm double pin extension interface, has a size of 58X64mm, and includes a Linux system, and is used for implementing IEC61850 and other cross communication applications with various protocols. And 4 serial ports (2 RS232 communication interfaces and 2 RS485 communication interfaces), 1 system DEBUG serial port and 2 10/100M self-adaptive network ports are configured.

Referring to fig. 4, a schematic diagram of a serial port circuit on a bottom plate, a photoelectric isolation circuit is formed by using a photoelectric coupler (which is a 1-channel not-gate logic photoelectric coupler), so that a signal isolation effect is achieved, the input end and the output end are completely electrically isolated, an output signal has no influence on the input end, and the anti-interference capability is enhanced; and the photoelectric coupler is a photoelectric device, so the service life is long, and the defect that the mechanical contact has the suction frequency can be effectively overcome.

Referring to fig. 5, a serial transmit/receive driver circuit is shown, the serial transmit/receive driver being a differential data transceiver with built-in protection against high-energy noise transients that may be better low-resistance against noise transients coupled to the data cable on most existing devices.

The RS232 serial port circuit is an SP3232 serial port transceiver.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a control panel suitable for join in marriage net terminal equipment, characterized by, includes the bottom plate, stack nuclear core plate on the bottom plate is provided with peripheral function circuit according to nuclear core plate's interface on the bottom plate, and peripheral function circuit includes: the system comprises an EMS anti-interference circuit, a photoelectric isolation circuit, a self-switching receiving and transmitting circuit, an RS232 serial port transceiver, a lightning surge protection circuit and a filter circuit;

2. The control panel suitable for distribution network terminal equipment according to claim 1, wherein the EMS anti-interference circuit is connected with a power input interface; the photoelectric isolation circuit and the receiving and transmitting self-switching circuit are connected with an RS484 serial port; the RS232 serial port transceiver is an RS484 serial port; the lightning protection surge circuit and the filter circuit are connected with 10/100M network ports.

3. The control panel suitable for the distribution network terminal equipment as claimed in claim 1, wherein the control panel is provided with corresponding plug-in ports on the outside, and the control panel is arranged at the position of a standby panel of the distribution network terminal equipment.